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US 2017/0318399 A1Published application
Implantable vibratory device using limited components
AssigneeCochlear Limited
InventorWerner Meskens
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Abstract
A prosthesis including an implantable component including an LC circuit, wherein a piezoelectric material forms at least a part of the capacitance portion of the LC circuit, the piezoelectric material expands and/or contracts upon the application of a variable magnetic field to the inductor of the LC circuit, the LC circuit has an electrical self-resonance frequency below 20 kHz, and the piezoelectric material forms part of an actuator configured to output a force to tissue of a recipient in which the implantable component is implanted.
Claims30
A prosthesis, comprising:
- an implantable component including an LC circuit, wherein a piezoelectric material forms at least a part of the capacitance portion of the LC circuit, the piezoelectric material expands and/or contracts upon the application of a variable magnetic field to an inductor of the LC circuit, and the piezoelectric material forms part of an actuator configured to impart energy into tissue of a recipient in which the implantable component is implanted.
An auditory prosthesis, comprising:
- an external assembly, including:
- a first inductance coil,
- an active electronic device in signal communication with the first inductance coil;
- and
- an implantable component made up of passive electronic components including a transducer configured to output mechanical energy when an electrical current is applied thereto, and a second inductance coil that is part of a first LC resonant circuit tuned to a frequency in the audio spectrum, wherein the first and second inductance coils form a transcutaneous coupled link.
2 more elements
A hearing prosthesis, comprising:
- an implantable passive resonant component including a vibratory electrical capacitive apparatus and an inductance coil, wherein
- the vibratory apparatus and the inductance coil are encased in a titanium housing, and
- the implantable component is configured such that a transcutaneous signal received by the inductance coil through the titanium housing activates the vibratory apparatus to evoke a hearing percept.
Dependencies are inferred from the claim text.